I would rate it as a Good to Very Good Condition. The front cover shows some minor creases and bent corners but the back and inside of the magazine is in very good to excellent condition considering it is almost 30 years old! The poster (front: Zelda map, and back: Baseball) is intact and in excellent condition, along with all inserts such as the Players Poll card. I also have the Last Issue of Nintendo Power (December 2012, issue #285) available if you are interested (if it's not listed yet, it will be listed soon). If you have any questions or would like to see more photos, please let me know!
The product is the first issue of Nintendo Power magazine from July/August 1988, which is a bimonthly publication in English. It features contributions from Mario and is filled with illustrations, making it an illustrated 1st edition magazine focused on video games.
Printed by Nintendo in the United States, this magazine is a must-have for fans of electronics and vintage gaming culture, as it includes all inserts and a poster in addition to its content.